Comment 13 for bug 1337349

We need the UUID to be consistent for all guests running on a particular host for the reasons that Daniel mentions, which the proposed patch would break. I also have concerns about using some format other than an actual UUID, which would be a problem if we just used a hash of the real UUID.

This could be addressed as an OSSN recommending that one generate their own UUID and configure it in /etc/libvirt/libvirtd.conf. I do agree that deployment tools should be responsible for setting these UUIDs instead of putting the burden on the deployer themselves.